Fracture Toughness of Polybutadiene at Cryogenic Temperatures.

Abstract

An estimate of fracture toughness of crosslined polybutadiene rubber at -180 degrees C has been made using the double torsin method. By using suitable specimen dimensions and strain rates, controlled crack propagatin can be achieved, together with a constant compliance to crack length ratio. Strain energy release rated for this polymer, crosslinked with either dicumyl peroxide or sulphur, were found to be an order of magnitude higher than for linear, glassy thermoplastics. Crazing is considered to contribute to the high toughness observed.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1983
Accession Number
ADA126999

Entities

People

  • R. P. Burford

Organizations

  • University of Akron

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Biomedical And Dental Materials
  • Chemical Engineering
  • Chemistry
  • Crack Propagation
  • Engineering
  • Material Degradation Processes
  • Materials
  • Materials Laboratories
  • Materials Science
  • Materials Testing
  • Military Research
  • Plastics
  • Polymer Chemistry
  • Polymeric Films
  • Resins
  • Strain Rate
  • Synthetic Rubber

Fields of Study

  • Materials science

Readers

  • Polymer Science and Engineering.
  • Structural Health Monitoring of Composite Structures.